Cyclopore PC Polycarbonate Membranes

Cyclopore PC membrane, circle

  • Low affinity for stains provides higher optical contrast and makes visibility under a microscope easy.
  • True surface capture provides easy examination of samples and short analysis times.
  • Totally transparent membranes available.
  • Negligible absorption and adsorption of filtrate; nonhygroscopic.
  • Low tare weights.
  • No pa...

Cyclopore PC membrane, circle

  • Low affinity for stains provides higher optical contrast and makes visibility under a microscope easy.
  • True surface capture provides easy examination of samples and short analysis times.
  • Totally transparent membranes available.
  • Negligible absorption and adsorption of filtrate; nonhygroscopic.
  • Low tare weights.
  • No particle shedding provides ultra clean filtrate.
  • Biologically inert.

Whatman Cyclopore membranes are true pore size microporous membranes featuring the sharp cut-off and reproducible microfiltration performance characteristics of track-etched membranes. The smooth flat membrane ensures particles are retained on the surface so that they are easily visible under a microscope.

Cyclopore membranes are manufactured using proprietary Whatman technology to produce a precision membrane filter with a closely controlled pore size distribution.

Membranes are produced from a pure polymeric film and give exceptional chemical cleanliness. They are free of contaminants, have low tare weight, minimum water adsorption, and very low levels of nonspecific protein binding.

The polycarbonate membranes are hydrophilic and are available in a choice of diameters and pore sizes. The polyester membranes are resistant to most organic solvents, amides, and halogenated hydrocarbons. This broad chemical compatibility makes polyester membranes suitable for the detection of particles in many corrosive fluids.

Higher strength and flexibility

Most membranes are inherently brittle and difficult to handle; it is not uncommon for filters to be damaged during loading into holders or while in use. Whatman cellulose nitrate membrane filters have a noticeably improved flexibility and are made to tolerate abuse during handling, loading, and autoclaving without sacrificing integrity. These membranes are among the strongest of their type available, as measured and compared by burst pressure tests.

Low extractable levels

The level of extractables in membrane filters has become more important with advances in filtration or adsorption techniques. In particular, pharmaceutical, immunological, and biomedical tissue culture and trace analysis applications can be adversely affected by high extractable levels. Whatman cellulose nitrate membrane filters have a low level of extractables, generally below that of other membranes of a similar type.

Narrow pore size distribution

One of the major features of Whatman membrane filters is the narrow distribution of pore sizes. The rated pore size of these membranes is closely controlled due to the advanced manufacturing and control system. Additionally, the batch-to-batch variation is minimized providing more consistent laboratory results.

Increased temperature stability

Membrane filters are normally autoclaved at 121°C without loss of integrity. Cellulose nitrate membranes are supplied as circles, sheets, or reels.

Reduced shrinkage

Excessive shrinkage can cause problems during autoclaving and is often the cause of membranes tearing in their holders after autoclaving. It may also cause a reduction in flow rate and total throughput. Whatman membranes exhibit a low shrinkage during autoclaving.

White plain filters

This is the standard membrane filter for the majority of laboratory applications involving particles and cells in the range of 0.1 µm to 12.0 µm. The residue after filtration is found to be almost completely on the surface of the membrane and allows physical recovery of deposits and microscopic examination.

Specifications

Cyclopore PC Polycarbonate Membranes There are 9 products.

Showing 1 - 9 of 9 items
  • Quick view
    ₪‎625.00

    Low affinity for stains provides higher optical contrast and makes visibility under a microscope easy. True surface capture provides easy examination of samples and short analysis times. Totally transparent membranes available. Negligible absorption and adsorption of filtrate; nonhygroscopic. Low tare weights. No particle shedding provides ultra clean...

    ₪‎625.00
  • Quick view
    ₪‎725.00

    Low affinity for stains provides higher optical contrast and makes visibility under a microscope easy. True surface capture provides easy examination of samples and short analysis times. Totally transparent membranes available. Negligible absorption and adsorption of filtrate; nonhygroscopic. Low tare weights. No particle shedding provides ultra clean...

    ₪‎725.00
  • Quick view
    ₪‎725.00

    Low affinity for stains provides higher optical contrast and makes visibility under a microscope easy. True surface capture provides easy examination of samples and short analysis times. Totally transparent membranes available. Negligible absorption and adsorption of filtrate; nonhygroscopic. Low tare weights. No particle shedding provides ultra clean...

    ₪‎725.00
  • Quick view
    ₪‎725.00

    Low affinity for stains provides higher optical contrast and makes visibility under a microscope easy. True surface capture provides easy examination of samples and short analysis times. Totally transparent membranes available. Negligible absorption and adsorption of filtrate; nonhygroscopic. Low tare weights. No particle shedding provides ultra clean...

    ₪‎725.00
  • Quick view
    ₪‎625.00

    Low affinity for stains provides higher optical contrast and makes visibility under a microscope easy. True surface capture provides easy examination of samples and short analysis times. Totally transparent membranes available. Negligible absorption and adsorption of filtrate; nonhygroscopic. Low tare weights. No particle shedding provides ultra clean...

    ₪‎625.00
  • Quick view
    ₪‎625.00

    Low affinity for stains provides higher optical contrast and makes visibility under a microscope easy. True surface capture provides easy examination of samples and short analysis times. Totally transparent membranes available. Negligible absorption and adsorption of filtrate; nonhygroscopic. Low tare weights. No particle shedding provides ultra clean...

    ₪‎625.00
  • Quick view
    ₪‎725.00

    Low affinity for stains provides higher optical contrast and makes visibility under a microscope easy. True surface capture provides easy examination of samples and short analysis times. Totally transparent membranes available. Negligible absorption and adsorption of filtrate; nonhygroscopic. Low tare weights. No particle shedding provides ultra clean...

    ₪‎725.00
  • Quick view
    ₪‎625.00

    Low affinity for stains provides higher optical contrast and makes visibility under a microscope easy. True surface capture provides easy examination of samples and short analysis times. Totally transparent membranes available. Negligible absorption and adsorption of filtrate; nonhygroscopic. Low tare weights. No particle shedding provides ultra clean...

    ₪‎625.00
  • Quick view
    ₪‎725.00

    Low affinity for stains provides higher optical contrast and makes visibility under a microscope easy. True surface capture provides easy examination of samples and short analysis times. Totally transparent membranes available. Negligible absorption and adsorption of filtrate; nonhygroscopic. Low tare weights. No particle shedding provides ultra clean...

    ₪‎725.00
Showing 1 - 9 of 9 items